Wall-finishing process.



No. 808,286. PATENTED DEC. 26 1905. H. H. HAHN.

WALL FINISHING PROCESS.

APPLICATION FILED PEEL-13.1905.

UNITED STATES PATENT OFFICE.

HOIVARD H. HAHN, OF DENVER, COLORADO, ASSIGNOR TO THE WVESTERN ENGINEERING COMPANY,

OF DENVER, COLORADO.

WALL-FINISHING PROCESS.

Specification of Letters Patent.

Patented Dec. 26, 1905.

To all w/wm it may concern:

Be it' known that I, HOWARD H. HAHN, a citizen of the United States, residing in the city and county of Denver, State of (3010- ,rado, have invented a certain new and useful WVall-Finishing Process; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to a process of finishing walls whereby they are protected from the weather, at the same time giving them a sand texture or finish.

The process consists of applying. a pasty substance formed of such material as cement, lime, gypsum, &c., to the wall by the use of compressed air and following up the application of the pasty substance by an application of sand or other suitable amorphous material granulated or pulverized to the desired degree of fineness, the sand being also applied through the instrumentality of compressed In the practice of my invention any suitable apparatus may be employed. An apparatus suitable for the purpose will now be described; but it must be understood that I do not limit the invention to any special apparatus.

The apparatus shown in the accompanying drawing will now be described.

Let the reference characters 5 and 6 designate two nozzles, each of which is provided with two passages 7 and 8, which merge into a single passage 9 at the outer extremity of the nozzle. These two nozzles are connected by a bar 10, to which is applied a rollerhandle 12 for convenience of manipulation. The passage 7 of the nozzle 5 is connected with a flexible hose-pipe 13 by means of a rigid piece of pipe 14. A valve 15 is interposed between the parts 13 and 14:. The pipe 13 leads to a receptacle 16, provided with a quantity of sand 17 The passage 7 of the nozzle 6 is provided with a metal pipe 18, having a valve 19. With this valve is also connected a hose-pipe 20, leading to a receptacle 21, containing a pasty substance 22, which must be in a liquid condition. A main air-pipe 23 leads to a transverse pipe 24, whose opposite extremities are connected with pipes 25 and 26, which lead to the passages 8 of the respective nozzles.

When the device is in use, air under suitable pressure is delivered to the pipe 23, and as the air rushes through the passages 8 of the two nozzles it acts by suction and on the principle of an atomizer to draw the material from the rceptacles 16 and 21 and discharge the latter upon the desired surface, as a wall, which may be indicated by the line 27.

In the operation of the device the apparatus illustraed in the drawing would be moved in the direction of the arrow, or toward the right. As the pasty substance is delivered to the wall a space of predetermined area is covered with the pasty substance, and as the apparatus is moved along, the movement being permissible by the length and flexibility of the hose-pipes 13 and 20, the sand from the nozzle 5 is delivered to the portion of the wall coated with the pasty substance and adheres to the portion of the wall or area covered with the said substance. Itwill thus be understood that by the proper manipulation of the apparatus any desired wall area may be given a sand finish. The transverse pipe 24 is provided with controlling-valves 29 and 30, located on opposite sides of the connection with the air-pipe 23, whereby the discharge of air through the nozzles may be controlled at will.

From the foregoing description the practice of my improved process will be readily understood.

The receptacle 21 is provided with a valvecontrolled pipe 31 for the introduction of air in order to produce the necessary agitation to prevent the settling of the solid material contained in the liquid substance or pulp 22. It isof course necessary that the solid or cement material constituting the pasty or sticky element of this substance should be thoroughly mixed with the liquid element at all times in order that the same may be homogeneous and of equal consistency in all parts of the receptacle. In order to produce this result, it is necessary that the substance be kept agitated, and this, it is believed, may other as to location, but Without any appre- 10 best be accomplished by the introduction of ciable lapse of time.

a fluid-jet at the bottom of the receptacle. In testimony whereof I afiix my signature Having thus described my invention, What in presence of two Witnesses. 5 1 HOWARD 1-1. HAHN.

The herein-described Wall-finishing process, consisting in simultaneously applying a Witnesses: sticky substance and a sandy substance, the H. J. BARR,

one being applied slightly in advance of the DENA NELSON. 

